JPH0424949B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a reaction plate for a linear motor used in transportation devices and means of transportation.

[Conventional technology and its problems]

In a wheel-supported primary linear motor car, as shown in FIG. motor 2
A reaction plate A is installed on the ground side facing the linear motor 24.

In the above-mentioned on-board primary linear motor car, not only the propulsive force is generated between the on-board linear motor 24 and the reaction plate A, but also the propulsion force is generated between the secondary iron core 6 of the reaction plate A and the linear motor 24.
Since a large suction force is generated in the vertical direction between the ground and the ground side, if the reaction plate A on the ground side is not attached stably, it will be attracted to the linear motor 24.

Therefore, the reaction plate A needs to be firmly fixed so that it can sufficiently withstand the vertical suction force.

By the way, conventionally, as shown in FIG. 6, the reaction plate A is stacked on the top surface of the pedestal 30 and welded, or as shown in FIG. 7, the bolt 31 is screwed into the reaction plate A from the bottom surface of the pedestal 30. Since the reaction plate A is fixed by tightening, the welds may corrode or the bolts 31 may become loose during use of the long engine, resulting in problems with the reliability of the connection between the frame 30 and the reaction plate A. There is. Furthermore, since processes for welding, tap hole drilling, and bolt tightening are required, there is also the disadvantage that the assembly cost of the reaction plate A increases.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned disadvantages, improve the reliability of the connection between the pedestal and the reaction plate, and facilitate assembly.

[Structure of the invention]

In order to achieve the above object, the present invention overlaps a secondary core on the lower surface of a support plate forming a frame, and places the secondary core on a pair of side plates formed downward from both side edges of both side plates of the support plate. A secondary conductor is provided with bent parts that engage with both sides of the lower surface of the iron core, and a pair of flanges that cover the upper outer surface of the side plate are formed on both side edges of the flat plate part that covers the surface of the support plate of the mount. An anti-corrosion layer is provided between the contact portion of the secondary conductor and the pedestal, and a protrusion is provided on the flange of the secondary conductor to engage with the step on the outer surface of the bent portion.

[Effect]

As mentioned above, since the secondary core is wrapped around the pedestal, the coupling force between the pedestal and the secondary core is strong, and the suction force of the linear motor ensures that the secondary core moves upward. It can be prevented.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 2 to 5.

As shown in FIG. 2, a steel frame 1 has a support plate 2
A pair of side plates 3 are formed on both side edges of the support plate 2, and a seat plate 4 is provided outward from the lower edge of each side plate 3. Further, an inwardly bent part 5 is provided at the upper part of the side plate 3, and the bent part 5 engages with both sides of the lower surface of the secondary core 6 superimposed on the lower surface of the support plate 2, so that the secondary core 6 It prevents you from falling out.

The secondary conductor 7 attached to the upper part of the pedestal 1 has a pair of flanges 9 that cover the upper outer surface of the side plate 3 on both sides of a flat plate part 8 that covers the upper surface of the support plate 2. A oriented projection 10 engages with an outer step 5' of the bent portion 5 formed on the side plate 3. This engagement prevents the secondary conductor 7 from moving upward. An anti-corrosion layer 11 for preventing electrolytic corrosion is provided between the contact portion of the secondary conductor 7 and the pedestal 1.
is provided.

3 to 5 show the sequence of assembling the reaction plate constructed as described above.

FIG. 3 shows the side plate 3 of the pedestal 1 formed by roll forming, which is opened in advance to the outside.
The figure shows a state in which the secondary iron core 6 is fitted between the two and superimposed on the lower surface of the support plate 2, and the upper part of the side plate 3 is pressurized in the direction shown by the arrow and crimped.
A bent portion 5 formed in advance on the side plate 3 engages with both sides of the lower surface of the secondary core 6 as shown in FIG.
and the secondary core 6 can be combined.

In the combined state, an anti-corrosion layer 11 is formed on the upper outer periphery of the pedestal 1, and a secondary conductor 7 with a pair of flanges 9 spread outward in advance is placed thereon.
By pressurizing and caulking the lower part of the flange 9 in the direction of the arrow in FIG. 4, the protruding portion 10 of the flange 9 engages with the outer step 5' of the bent portion 5, and the reaction occurs as shown in FIG. A plate can be formed.

In this way, the reaction plate can be assembled by caulking, which is suitable for mass production, and the pedestal 1 and the secondary conductor 7 have shapes that can be roll-formed, press-formed, or drawn. This can be effective in reducing the manufacturing cost of the reaction plate.

When installing the reaction plate as described above, the reaction plate is placed on the sleeper 20 shown in FIGS. 1 and 2, and the L-shaped clamp 25 engaged with the seat plate 4 is tightened with screws. etc., and a height adjusting member 26 is interposed between the seat plate 4 and the sleeper 20 as necessary.

〔effect〕

As described above, the present invention overlaps the secondary core on the lower surface of the support plate of the pedestal, engages the bent portions provided on the side plates of the pedestal with both sides of the lower surface of the secondary core, and wraps the secondary core with the pedestal. As a result, the connection between the frame and the secondary core is strong, the reliability of assembly is high, and the secondary core is reliably prevented from moving upward due to the suction force of the on-board linear motor. can.

In addition, the frame and the secondary core can be formed by means such as roll forming, press forming, or drawing, and the reaction plate can be assembled by caulking. It is extremely easy to assemble and can have an extremely large effect on reducing manufacturing costs.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing the installation state of the reaction plate according to the present invention, FIG. 2 is an enlarged cross-sectional view of the same reaction plate, and FIGS. 3 to 5 show the assembly of the same reaction plate in stages. FIGS. 6 and 7 are cross-sectional views showing conventional reaction plates. 1... Frame, 2... Support plate, 3... Side plate, 5...
...bending part, 5'...outer surface stepped part, 6...secondary core,
7... Secondary conductor, 8... Flat plate part, 9... Flange, 10... Projection part, 11... Anti-corrosion layer.

Claims (1)

[Claims] 1 A pedestal with a pair of side plates on both sides of a support plate,
A secondary core superimposed on the lower surface of the support plate of the pedestal, a secondary conductor formed with a pair of flanges covering the upper side of the pedestal on both sides of a flat plate portion covering the top surface of the pedestal, and a contact area between the secondary conductor and the pedestal. The side plate of the frame is provided with a bent portion that engages with both sides of the lower surface of the secondary core, and the flange of the secondary conductor is provided with a bent portion that engages with the outer step of the bent portion. A reaction plate for linear motors with a matching protrusion.